5.3 liter motor, lifter ticking/sticking - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


GMC/Chevrolet Truck/SUV When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 11-22-2014, 11:57 AM   #11
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Nov 2014
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Hoopes05 is on a distinguished road
Default

I just changed the oil pressure switch. Now I am getting around 30 psi on the gauge with the engine cold. What should the oil pressure be? If this is too low, is my next move to replace the oil pump?
Hoopes05 is offline   Reply With Quote
Old 11-22-2014, 02:26 PM   #12
Senior Member
Posts like a Turbo
 
chevy82's Avatar
 
Join Date: Jan 2014
Location: Missouri
Posts: 396
Thanked 99 Times in 84 Posts
chevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of light
Default

Now we are getting somewhere. Pressure is a low when cold. I like to see psi over 40 when its cold. Most important, what'* your readings when engine is hot.
chevy82 is offline   Reply With Quote
Old 11-22-2014, 02:29 PM   #13
Senior Member
Posts like a Turbo
 
chevy82's Avatar
 
Join Date: Jan 2014
Location: Missouri
Posts: 396
Thanked 99 Times in 84 Posts
chevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of light
Default

Oil pressure specs when engine is hot.

6 psig at 1,000 engine RPM

18 psig at 2,000 engine RPM

24 psig at 4,000 engine RPM

If your readings are lower, I am suspecting your oil pump is getting weak or you have a lot of sludge in the oil pan causing low pressure. More than likely a bad pump.

Last edited by chevy82; 11-22-2014 at 02:32 PM.
chevy82 is offline   Reply With Quote
Old 11-22-2014, 03:02 PM   #14
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Nov 2014
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Hoopes05 is on a distinguished road
Default

Oil pressure readings engine hot.
1,000 rpm -- 23 psi
2,000 rpm -- 25 psi
4,000 rpm -- 40 psi

I let it idle to get it to start ticking. There was no loss of pressure when the ticking started. Another thing that happened is that I shut it off for 10 seconds and then started it again and the ticking was gone. I didn't let it idle until it started ticking again. Is there a possibility that this sound is a fuel injecter?
Hoopes05 is offline   Reply With Quote
Old 11-22-2014, 03:36 PM   #15
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Nov 2014
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Hoopes05 is on a distinguished road
Default

I was wrong on the psi readings. They were actually.
1000 rpm -- 30 psi
2000 rpm -- 35 psi
4000 rpm -- 40 psi
Hoopes05 is offline   Reply With Quote
Old 11-22-2014, 10:18 PM   #16
Senior Member
Posts like a Turbo
 
chevy82's Avatar
 
Join Date: Jan 2014
Location: Missouri
Posts: 396
Thanked 99 Times in 84 Posts
chevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of light
Default

Id say your ok on pressure. How long have you owned the vehicle? Oil changes done when needed? The reason I ask is these engine very rarely have lifter problems alone. I did have one avalanche with the 5.3 engine had bad lifter noise. The engine itself wasn't taken care of and was really nasty on the inside. I replaced all the lifters and added Riselone to the engine oil to help with the lifter noise. It took care of the noise after about 500 miles. You also need to remember the pistons in theses engine don't have very large piston skirts compared to the 5.7 liter. Some piston knock will be heard especially when cold.
chevy82 is offline   Reply With Quote
Old 11-22-2014, 11:37 PM   #17
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Nov 2014
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Hoopes05 is on a distinguished road
Default

I've had this yukon since 45,000 miles. It'* now at 145,000 miles. Serviced by the dealer every 5,000 miles.
Just sat in the drive thru for ten minutes idling then the ticking started. I shut off the car for a minute or so. Started it up and it ticked for a couple seconds and stopped even with idling for another few minutes.
Do you think it could be a fuel injector?
Hoopes05 is offline   Reply With Quote
Old 11-23-2014, 11:45 PM   #18
Senior Member
Posts like a Turbo
 
chevy82's Avatar
 
Join Date: Jan 2014
Location: Missouri
Posts: 396
Thanked 99 Times in 84 Posts
chevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of lightchevy82 is a glorious beacon of light
Default

Unless it'* missfiring, but it'* not. At this point I would try adding some additive to the oil and see if that helps. This is goin off the notion all the internal engine components are ok. Riselone is a good product, available from any parts store. I don't like Lucas, it'* too thick.
chevy82 is offline   Reply With Quote
Old 11-24-2014, 08:39 PM   #19
Senior Member
Posts like a Supercharger
 
Join Date: Aug 2013
Posts: 174
Thanked 7 Times in 5 Posts
tsaw5500 is on a distinguished road
Default

do u have any lights on on the dash?
tsaw5500 is offline   Reply With Quote
Old 11-24-2014, 09:54 PM   #20
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Nov 2014
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Hoopes05 is on a distinguished road
Default

As far as I can tell all of the dash lights work. What are you getting at?
No check engine light comes on when the ticking starts, if that'* what you mean.

UPDATE--- I idled the car for 45 minutes last night and it never ticked. I was trying to get it to tick so I could rule out the fuel injector theory I have.
Hoopes05 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Ticking Noise @the idle..bad lifter? da_grey_goose_95 1992-1999 26 03-13-2013 07:20 AM
Ford 3.8 liter specifications?(updated with pictures) Custom88 Lounge 16 10-23-2005 08:51 PM
mysterous ticking from back of motor ELMACHOGERACHO 1992-1999 6 09-16-2005 06:57 AM
3.8 liter Hans Your Ride: GM Pictures & Videos 10 03-17-2005 09:30 PM
2000 doge RT 5.8 liter 250 hp bonnissei General GM Chat 1 06-29-2003 01:22 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:50 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.